Answer:
The light blue one, y=a(x-h)^2+k
Step-by-step explanation:
≅
137
The answer is D) triangle XYZ
FG = 10
EF = x + 2 ; FG = 2x - 6
F is the mid-point of EG. So, EF = FG
FG = 2×8 - 6 = 10